More than half a dozen area fire departments were fighting the fire since around 9 a.m. The warehouse housed a paint company and two automotive suppliers.

Explosions rocked the building Saturday morning, as surrounding streets and businesses were closed.

There were concerns about air contamination from paints, oils and solvents that were in the building.

Officials say one minor burn has been reported that was treated on the scene, and four firefighters were treated at a nearby hospital for heat exhaustion. All four have been released and are in good condition.